Hi Peter,
I tried with a similar mix of versions and got no problems as shown with the snapshot below. Could you shutdown the domino service, delete the c:\lotus\domino\data\pid.nbf file, start the domino service, try dominodefrag again and tell me how you go.
Thanks
> load dominodefrag help
03/06/2010 10:33:02 PM DominoDefrag: v2.4.4 (23 May 2010 C++ API version)
03/06/2010 10:33:02 PM DominoDefrag: Initializing…
03/06/2010 10:33:02 PM DominoDefrag: Running on Windows 5.2.3790.Service Pack 2
03/06/2010 10:33:02 PM DominoDefrag: Running on Domino 368
03/06/2010 10:33:02 PM DominoDefrag: Using contig.exe 1.55
03/06/2010 10:33:02 PM DominoDefrag: 32bit version running on 64bit platform
03/06/2010 10:33:02 PM DominoDefrag: Directory -> help
03/06/2010 10:33:02 PM DominoDefrag: Process Full Text Index -> On
03/06/2010 10:33:02 PM DominoDefrag: DominoDefrag_MinuteInterval parameter not
found. Task will only run once
03/06/2010 10:33:02 PM DominoDefrag: DominoDefrag_RunTime parameter not found.
No time limit on task execution
03/06/2010 10:33:02 PM DominoDefrag: DominoDefrag_StartPoint not found. Default
ing to 2
03/06/2010 10:33:02 PM DominoDefrag: Verbose Logging -> On
03/06/2010 10:33:02 PM DominoDefrag: Compact Database Before Defrag -> On
03/06/2010 10:33:02 PM DominoDefrag: Compact -B will occur as Transactional log
ging is disabled
03/06/2010 10:33:02 PM DominoDefrag: Summary Email Address -> world administrat
or
03/06/2010 10:33:02 PM DominoDefrag: Transaction Log -> Off
03/06/2010 10:33:02 PM DominoDefrag: DAOS -> Off
03/06/2010 10:33:02 PM DominoDefrag: Performance Check -> On
03/06/2010 10:33:02 PM DominoDefrag: Initialization complete
03/06/2010 10:33:03 PM DominoDefrag: help\decsdoc.nsf Started Compact
03/06/2010 10:33:04 PM DominoDefrag: help\decsdoc.nsf Completed Compact. Reduce
d from 4194304 to 2359296 bytes
03/06/2010 10:33:04 PM DominoDefrag: help\decsdoc.nsf Already Defragmented
03/06/2010 10:33:04 PM DominoDefrag: help\decsdoc.ft Already Defragmented
03/06/2010 10:33:04 PM DominoDefrag: help\help85_admin.nsf Started Compact
03/06/2010 10:33:05 PM DominoDefrag: help\help85_admin.nsf Completed Compact. N
o change in size
03/06/2010 10:33:05 PM DominoDefrag: help\help85_admin.nsf Performance before d
efrag took 15 milliseconds to collect 2961 documents
03/06/2010 10:33:05 PM DominoDefrag: help\help85_admin.nsf Started Defrag
03/06/2010 10:33:06 PM DominoDefrag: help\help85_admin.nsf File Size -> 1835008
0 bytes
03/06/2010 10:33:06 PM DominoDefrag: help\help85_admin.nsf Before Fragments ->
62
03/06/2010 10:33:06 PM DominoDefrag: help\help85_admin.nsf After Fragments -> 1
03/06/2010 10:33:06 PM DominoDefrag: help\help85_admin.nsf Completed Defrag